MetaRex needs you The award winning , philanthropic, non-profit MetaRex project makes metadata flow. The more metadata you have, the more you will benefit. But we need more backers to get the project over the finish line. Ideally we’d like 2 more silver backers or 15 more regular backers ; … Read more
Best IBC Accelerator Project 2023

MetaRex was at IBC in Hall 3 on the Responsive Narrative Factory Pod.

BBC   |   MetaRex   |   Infuse   |   Cuvo   |   EZDRM   |   JPBMedia

Personalized Streaming Video - you're in charge of the viewing

Metadata driven Video - you're in control of the creation

MetaRex will create free Open Source software (**FOSS**) to handle media


  • Backers put money in a pot
  • The pot is used to fund the FOSS
  • Everyone gets to build rich metadata driven applications that work seamlessly together with No-Code interoperability built in.
  • On Set Virtualisation, QC cascading, Localisation, AI driven MAMs - it’s all in scope
  • Set the metadata free with Metarex
  • Read More about the technology and become a backer
  • Sign up to our newsletter if you want test files, spec updates or just want to see how Rexy evolves once the sun-tan is done.
  • Download a sample metarex file for Rexy’s sunbathing scene. It has some issues that are being worked on. The registration information is in the register and the high level documentation in online.
Responsive Narrative Factory is the best IBC Accelerator 2023 MetaRex teamed up with [Infuse Video] to lead the 2023 IBC Accelerator Project - Responsive Narrative Factory. Guided by our champions, the BBC and theIET , we sought to deliver a hyper-personalised experience based on individual choices … Read more

Our Backers

GOLD - the board


yellow basket

SILVER - guiding’s destiny
REGULAR - helping finish on time
PARTNERS - gathering the requirements
An Introduction to Metarex

What is MetaRex?

Metarex is an initiative dedicated to developing an open-source framework for the transport of media metadata. This framework will allow you to preserve, transport, identify, and use metadata from many sources in a single workflow. This will make it easier to manage metadata and ensure that it is accurate and consistent whenever video content is processed, broadcast, or distributed.

Why is MetaRex needed?

There is currently no standard way to transport media metadata. The lack of transport medium can cause these metadata issues:

  1. It is lost or corrupted during the production process
  2. Incompatibility with different software applications
  3. Difficulties in managing and searching

How will MetaRex help improve metadata management?

MetaRex will create a standardised way to transport metadata, ensuring that metadata is always transported in the same way, regardless of the software application used. This will make it easier to manage and search metadata, and it will also reduce the risk of metadata being lost or corrupted.

MetaRex will make metadata interoperable, which means that it will be compatible with different software applications. This will make it easier to share metadata between different systems, and it will also make it easier to access metadata from different sources.

MetaRex will be extensible, meaning new metadata formats can be easily added to the framework. This will ensure that MetaRex can support the latest metadata standards, and it will also make it easier to add new metadata fields to the framework.

Who is behind the MetaRex project and how is it funded?

The MetaRex team is led by renowned media technologist Bruce Devlin , who has had a significant impact on the way that media is produced and distributed. Devlin is a former head of standards for SMPTE and a member of the EBU. He is passionate about open-source solutions and is committed to making the media industry more accessible and efficient. MetaRex is a not-for-profit initiative and is funded by donations from companies that will benefit from free-flowing metadata.

How will MetaRex benefit me?

We can help you streamline your workflows and connect you with our growing network of companies. Your involvement will give you the opportunity to adapt the Metarex framework to your requirements and allow you to be first to market.

Why not arrange a meeting and see how we can help?

You can download a PDF of this document

MetaRex needs you

The award winning , philanthropic, non-profit MetaRex project makes metadata flow. The more metadata you have, the more you will benefit. But we need 2 more silver backers or 15 more regular backers to get the project over the finish line. But first, lets lay out our objectives:

  1. 😎 MetaRex is a free software framework .
  2. 😎 MetaRex lets you define your own metadata.
  3. 😎 MetaRex defines a container for your metadata.
  4. The container is mapped to many types of network. Transport comes for free!
  5. 😎 MetaRex gives you a unique Id for your new type of metadata.
  6. 😎 MetaRex lets you publish services for your metadata type.
  7. You can monetize those services
  8. 😎 MetaRex lets you discover services for unknown metadata types.
  9. 😎 MetaRex supports all types of metadata including text & binary, timeline & static, frame locked, sample locked & stochastic, single stream & mixed streams of metadata.
  10. 😎 MetaRex is built on standard tools, standard formats & standard frameworks.
  11. 😎 MetaRex can run in a product, on-premise or globally.
Technology ...
Project ...
Backers ...Read More... Ltd. Organisation and Entity
MetaRex is a UK Limited Company that exists for the following


  1. Raise funds to create the MetaRex Open Source Software
  2. Maintain a board until end 2024
  3. Maintain a website to run the project & communicate results
  4. Publish the workplan to build the Software
  5. Distribute funds to project grant applicants (companies & individuals)
  6. Dissolve itself after 2 years at the boards discretion


A board of 3-7 members is initially created from the Gold Tier backers. The company health is led by the Executive Director and the work is coordinated by the Gold & Silver Tier backers.

Work Plan

The work plan is managed in working groups that comprise small, targetted work packages that result in:

  1. Open Source Code including SDK, apps, schemas, encoding, registration & processing.
  2. Open Source Hardware Definitions.
  3. Public Domain Data (for testing, registration, operational use).
  4. Specification documents - machine readable where possible.
  5. A free to access register for public projects


The initial backers, company incorpration, board and draft work plan will be in place by 2022-12-31. First grant applications & proposals can be received against the work plan 2023-01-01. Gantt Chart on the Project page.

The project will continue until 2024-12-31 and then be wound up by the board leaving all code and open source content in place with a sustaining plan to ensure it’s longevity.